<ul>
    <li <?php if($navTab == 'home') echo 'class="active"'; ?>><a href="<?php echo base_url(); ?>admin.php">Home</a></li>
    <li <?php if($navTab == 'category') echo 'class="active"'; ?>><a href="<?php echo base_url(); ?>admin.php/category">Category</a></li>
    <li <?php if($navTab == 'note') echo 'class="active"'; ?>><a href="<?php echo base_url(); ?>admin.php/note">Notes</a></li>
    <li <?php if($navTab == 'product') echo 'class="active"'; ?>><a href="<?php echo base_url(); ?>admin.php/product">Products</a></li>
    <li <?php if($navTab == 'order') echo 'class="active"'; ?>><a href="<?php echo base_url(); ?>admin.php/order">Orther</a></li>
    <li <?php if($navTab == 'user') echo 'class="active"'; ?>><a href="<?php echo base_url(); ?>admin.php/user/logout">Logout</a></li>
</ul>